Replacing the system fan – Lenovo B40-30 All-in-One User Manual
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Step 12. Holding the sides of the microprocessor with your fingers, remove the protective cover
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that
protects the gold contacts on the new microprocessor.
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Step 13. Holding the sides of the microprocessor with your fingers, position the microprocessor so that the
notches on the microprocessor are aligned with the tabs in the microprocessor socket.
Important: To avoid damaging the microprocessor contacts, keep the microprocessor completely level
while installing it into the socket.
Step 14. Lower the microprocessor straight down into its socket on the motherboard.
Step 15. To secure the microprocessor in the socket, close the microprocessor retainer and lock it into
position with the small handle.
Step 16. Use a thermal grease syringe to place 5 drops of grease on the top of the microprocessor. Each
drop of grease should be 0.03ml (3 tick marks on the grease syringe).
Step 17. Reattach the heat-sink, EMI cover, middle cover, stand holder, foot cover and stand base.
Replacing the system fan
Note: Turn off the computer and wait 3 to 5 minutes to let it cool down before removing the cover.
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